Car insulation.



A. (3. BROWN.

CAR INSULATION.

APPLICATION FILED'JAN- I0. 1913.

Patented Oct. 12, 1915.

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A. G. BROWN.

CAR INSULATION.

APPLICATION FILED JAN. 10. 1913.-

Patented Oct. 12, 1915.

III/III 2 SHEETS-SHEET Z- *zmvmwiiiii INVtNTOR A/frec/Bmwa 73] WV \Mmew IIIIII/I UNITED STATES PATENT OFFICE- ALFRED G. BROWN,OF WINONA, MINNESOTA, ASSIGNOR T UNION FIBRE COMPANY, OF WINONA, MINNESOTA, A CORPORATION OF MINNESOTA.

CAR INSULATION.

Application filed January 10, 1913.

- of which the following is a specification.

My invention relates to improvements in insulation constructions, its object being particularly to provide an improved insulated construction of car floor and connected side walls which will prevent water from getting to the interior insulation to deteriorate the same, and which will also prevent the interior insulation from being affected by the driving of ordinary nails or spikes into the floor of the car.

To this end the invention consists in the features of construction, combination, and arrangement of parts hereinafter described and claimed.

In the accompanying drawings forming part of this specification, Figure 1 is a perspective view of a-car floorand connected side wall broken away and containing my improved features of invention; 'FigQ 2 is a transverse vertical section through a car body containing my features of invention; and Fig. 3 is a similar view through a portion of the floor and connected sidewall enlarged.

, Referring to the drawings, A represents the outer side wall sheathing of the car, and B the spaced floor timbers. In building up the floor construction strips 2 will first be secured along the inner faces of the floor timbers and upon this is arranged the flooring 3, preferably of ordinary tongued and grooved material. The flooring 3 will then' be covered by a layer of suitable waterproof material 4, as water-proof paper. Upon the paper 4 are placed layers of insulating material 5. Where some kinds of insulation, as the well known Linofelt insulation is used, firring strips 6 may be placed betweenthe layers. With certain other well known kinds of insulation, such firring strips will not be necessary. The insulation being pressed into place between the timbersis covered by a layer of water-proof mate- .rial 7, such as water-proof paper, the side edges ofthe paper being turned upalong the inner faces of the sills to the top thereof. Alplurality of pieces of board 8 are then placed upon the water-proof paper 7, and

Specification of Letters Patent.

Patented Oct. 12, 1915.

Serial No. 741,223.

interspaced from the timbers and from each other preferably about a quarter of an inch. Said pieces of board 8 constitute a protecting filler for the insulation 5, the wood fillers serving as nailing strips to prevent the insulation from being pierced by spikes driven through the car floor. A suitable water-proof material 9, such as antiaqua is then poured in liquid state around and on top the pieces 8, the antiaqua preferably extending upwardly flush to the tops of the sills. It will be understood that this waterproof material, will be ofa kind that will harden but not become brittle upon becoming hard. A layer of rubberoid or equivalent water-proof paper 10 will then be laid upon the tops of the sills and the filling 9, covering the entire bottom of the car, said water-proof paper, as shown, extending outwardly under the inner layers of the side wall insulation and upwardly along the inner face of the outer layer of side Wall in- 1 sulation. Upon the water-proof paper 10 will be laid the flooring 11 extending, as shown, outwardly underneath the inner layers of side wall insulation.

The side wall of the car is made up, as shown, of the outer sheathing A inside of which is arranged an outer layer of insulating material 12-between the frame 13 and outer sheathing. Inside the frame is shown two inner layers 14 and 15 of'insulation interposed between the frame 13 and inner sheathing 16 of the side wall. The bottom edges of the inner layers 14 and 15 of insulation are shown enveloped by water p'roof paper 17 laid on top of thGflOOI'. In building up the side wall of'the car a water proof material 9, similar to that employed vin the flooring, is. poured behind the first layer of inner sheathing, whereby to prevent water getting from the floor to the side wall insulation. i

It will be apparent that the layers of insulation 5 are thus protected on the underside from moisture by the false flooring and under layer of water-proof paper and upon the other side by the two layers of waterproof paper, as well as by thepieces of board 8 and the enveloping water-proof compound. It will thus be impossible for any waterthat may collect upon the inner ear floor, as in washing the car, handling ice therein, etc., to penetrate through to the layers of insulation. Another great advantage is that the ordinary spikes used in cleating the center of the car to support freight cannot penetrate through the pieces of board 8 and surrounding water-proof material to the layers of insulation. In the ordinary insulated car floor constructions the spikes employed make holes through which water passes to the layers of insulation, causing deterioration. This has been a problem in insulated car 'fioor constructions that has not been heretofore successfully solved. '1 also, by means of the particular character of Water-proof connection shown between the floor and bottom of the side wall insulation, prevent the water from getting to the bottom of the side wall insulation to cause its deterioration.

By means of the features of invention shown, I thus secure a construction of in sulated bottom and side walls which is absolutely protected from water which ordinarily collects on the inner fioor of the car, and which in the ordinary constructions causes deterioration of the layers of insulation.

I claim as my invention:

1. A floor construction'for cars, comprising in combination with floor timbers, a built-up insulating structure contained wholly between said timbers, saidflinsulating structure consisting of a plurality of layers of insulation supported by said timbers, filler blocks inserted in spaced relation across the openings between said-timbers and above said insulation, and a'plastic material poured around said filler blocks and filling the remainder of the space to the upper level of the floor timbers, and the flooring laid over said timbers.

2. A floor construction for cars, comprising in combination with floor timbers, a false flooring provided between said timbers, and an insulating structure built-up upon said false flooring said insulating structure consisting of a plurality of layers of insulation laid upon said false flooring, filler blocks laid upon said insulation, and water proofing material surrounding said blocks and filling space between said timbers to the upper level thereof, and a flooring laid upon said timbers.

3. A. floor construction for cars, comprising in combination with floor timbers, a false flooring supported between said timbers, and an insulating structure supported flopflea of this patent may be obtained for ire cents each, by addressing the Commissioner of Eateata,

by said false flooring, said insulating structure consisting of layers of insulation laid upon said false flooring, filler blocks laid upon said insulation and extending across filler blocks laid upon said insulating material and spaced from one another and from said timbers, and a plastic water-proofing material poured around said filler blocks and filling the remainder of the space between said timbers to the'upper level thereof, said plastic material and filler blocks protecting said insulation from damage by articles driven into said insulation.

5. A. carfioor and wall construction, comprising in combination, floor timbers and car framing, a false flooring supported between said timbers and providing channel-like spaces therebetween, a plurality of layers of insulation laid upon said false flooring, layers of insulation also secured to said car framing, filler blocks placed in said channellike spaces above said insulation in water proofed relation thereto, a plastic Waterproofing material spacing said blocks from one another and from said timbers, said plastic material also filling the remainder of said spacesto the upper level of said timbers, a flooring laid upon said timbers, a water proofing material interposed between said timbers and said floor and extending below the inner layers of insulation on said car frame, and vertically overlying the lower portion of the outer layer of insulation on the car frame, and a layer of water proofing plastic between said floor and the lower inner edge of the insulation of the car wall.

ln'testimony whereof I aflix my signature in presence of two witnesses.

ALFRED e. BROWN.

Witnesses HosMnR W. Lnnns, LUELLA Grrrom),

' Washington, D. Q. 

